algebraic_topology.fundamental_groupoid.punit

Changes since the initial port

The following section lists changes to this file in mathlib3 and mathlib4 that occured after the initial port. Most recent changes are shown first. Hovering over a commit will show all commits associated with the same mathlib3 commit.

Changes in mathlib3

70fd9563

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

33c67ae6

bump to nightly-2024-04-06-08

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

e34029c9

Diff

@@ -3,7 +3,7 @@ Copyright (c) 2022 Praneeth Kolichala. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Praneeth Kolichala
 -/
-import CategoryTheory.Punit
+import CategoryTheory.PUnit
 import AlgebraicTopology.FundamentalGroupoid.Basic
 
 #align_import algebraic_topology.fundamental_groupoid.punit from "leanprover-community/mathlib"@"33c67ae661dd8988516ff7f247b0be3018cdd952"

33c67ae6

bump to nightly-2023-09-24-06

mathlib commit https://github.com/leanprover-community/mathlib/commit/ce64cd319bb6b3e82f31c2d38e79080d377be451

5655435f

Diff

@@ -3,8 +3,8 @@ Copyright (c) 2022 Praneeth Kolichala. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Praneeth Kolichala
 -/
-import Mathbin.CategoryTheory.Punit
-import Mathbin.AlgebraicTopology.FundamentalGroupoid.Basic
+import CategoryTheory.Punit
+import AlgebraicTopology.FundamentalGroupoid.Basic
 
 #align_import algebraic_topology.fundamental_groupoid.punit from "leanprover-community/mathlib"@"33c67ae661dd8988516ff7f247b0be3018cdd952"

33c67ae6

bump to nightly-2023-07-20-09

mathlib commit https://github.com/leanprover-community/mathlib/commit/8ea5598db6caeddde6cb734aa179cc2408dbd345

9c56d0dd

Diff

@@ -2,15 +2,12 @@
 Copyright (c) 2022 Praneeth Kolichala. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Praneeth Kolichala
-
-! This file was ported from Lean 3 source module algebraic_topology.fundamental_groupoid.punit
-! leanprover-community/mathlib commit 33c67ae661dd8988516ff7f247b0be3018cdd952
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.CategoryTheory.Punit
 import Mathbin.AlgebraicTopology.FundamentalGroupoid.Basic
 
+#align_import algebraic_topology.fundamental_groupoid.punit from "leanprover-community/mathlib"@"33c67ae661dd8988516ff7f247b0be3018cdd952"
+
 /-!
 # Fundamental groupoid of punit

33c67ae6

bump to nightly-2023-06-13-21

mathlib commit https://github.com/leanprover-community/mathlib/commit/9fb8964792b4237dac6200193a0d533f1b3f7423

829520ac

Diff

@@ -42,12 +42,14 @@ instance {x y : FundamentalGroupoid PUnit} : Subsingleton (x ⟶ y) :=
   · congr <;> apply PUnit.eq_punit
   apply Quotient.subsingleton
 
+#print FundamentalGroupoid.punitEquivDiscretePUnit /-
 /-- Equivalence of groupoids between fundamental groupoid of punit and punit -/
 def punitEquivDiscretePUnit : FundamentalGroupoid PUnit.{u + 1} ≌ Discrete PUnit.{v + 1} :=
   Equivalence.mk (Functor.star _) ((CategoryTheory.Functor.const _).obj PUnit.unit)
     (NatIso.ofComponents (fun _ => eqToIso (by decide)) fun _ _ _ => by decide)
     (Functor.punitExt _ _)
 #align fundamental_groupoid.punit_equiv_discrete_punit FundamentalGroupoid.punitEquivDiscretePUnit
+-/
 
 end FundamentalGroupoid

33c67ae6

bump to nightly-2023-06-13-09

mathlib commit https://github.com/leanprover-community/mathlib/commit/9fb8964792b4237dac6200193a0d533f1b3f7423

395b4fcf

Diff

@@ -46,7 +46,7 @@ instance {x y : FundamentalGroupoid PUnit} : Subsingleton (x ⟶ y) :=
 def punitEquivDiscretePUnit : FundamentalGroupoid PUnit.{u + 1} ≌ Discrete PUnit.{v + 1} :=
   Equivalence.mk (Functor.star _) ((CategoryTheory.Functor.const _).obj PUnit.unit)
     (NatIso.ofComponents (fun _ => eqToIso (by decide)) fun _ _ _ => by decide)
-    (Functor.pUnitExt _ _)
+    (Functor.punitExt _ _)
 #align fundamental_groupoid.punit_equiv_discrete_punit FundamentalGroupoid.punitEquivDiscretePUnit
 
 end FundamentalGroupoid

33c67ae6

bump to nightly-2023-06-09-11

mathlib commit https://github.com/leanprover-community/mathlib/commit/7e5137f579de09a059a5ce98f364a04e221aabf0

f5e7eb19

Diff

@@ -43,11 +43,11 @@ instance {x y : FundamentalGroupoid PUnit} : Subsingleton (x ⟶ y) :=
   apply Quotient.subsingleton
 
 /-- Equivalence of groupoids between fundamental groupoid of punit and punit -/
-def punitEquivDiscretePunit : FundamentalGroupoid PUnit.{u + 1} ≌ Discrete PUnit.{v + 1} :=
+def punitEquivDiscretePUnit : FundamentalGroupoid PUnit.{u + 1} ≌ Discrete PUnit.{v + 1} :=
   Equivalence.mk (Functor.star _) ((CategoryTheory.Functor.const _).obj PUnit.unit)
     (NatIso.ofComponents (fun _ => eqToIso (by decide)) fun _ _ _ => by decide)
     (Functor.pUnitExt _ _)
-#align fundamental_groupoid.punit_equiv_discrete_punit FundamentalGroupoid.punitEquivDiscretePunit
+#align fundamental_groupoid.punit_equiv_discrete_punit FundamentalGroupoid.punitEquivDiscretePUnit
 
 end FundamentalGroupoid

33c67ae6

bump to nightly-2023-05-28-06

mathlib commit https://github.com/leanprover-community/mathlib/commit/917c3c072e487b3cccdbfeff17e75b40e45f66cb

ba5d8b97

Diff

@@ -42,12 +42,6 @@ instance {x y : FundamentalGroupoid PUnit} : Subsingleton (x ⟶ y) :=
   · congr <;> apply PUnit.eq_punit
   apply Quotient.subsingleton
 
-/- warning: fundamental_groupoid.punit_equiv_discrete_punit -> FundamentalGroupoid.punitEquivDiscretePunit is a dubious translation:
-lean 3 declaration is
-  CategoryTheory.Equivalence.{u1, u2, u1, u2} (FundamentalGroupoid.{u1} PUnit.{succ u1}) (CategoryTheory.Groupoid.toCategory.{u1, u1} (FundamentalGroupoid.{u1} PUnit.{succ u1}) (FundamentalGroupoid.CategoryTheory.groupoid.{u1} PUnit.{succ u1} PUnit.topologicalSpace.{u1})) (CategoryTheory.Discrete.{u2} PUnit.{succ u2}) (CategoryTheory.discreteCategory.{u2} PUnit.{succ u2})
-but is expected to have type
-  CategoryTheory.Equivalence.{u1, u2, u1, u2} (FundamentalGroupoid.{u1} PUnit.{succ u1}) (CategoryTheory.Discrete.{u2} PUnit.{succ u2}) (CategoryTheory.Groupoid.toCategory.{u1, u1} (FundamentalGroupoid.{u1} PUnit.{succ u1}) (FundamentalGroupoid.instGroupoidFundamentalGroupoid.{u1} PUnit.{succ u1} instTopologicalSpacePUnit.{u1})) (CategoryTheory.discreteCategory.{u2} PUnit.{succ u2})
-Case conversion may be inaccurate. Consider using '#align fundamental_groupoid.punit_equiv_discrete_punit FundamentalGroupoid.punitEquivDiscretePunitₓ'. -/
 /-- Equivalence of groupoids between fundamental groupoid of punit and punit -/
 def punitEquivDiscretePunit : FundamentalGroupoid PUnit.{u + 1} ≌ Discrete PUnit.{v + 1} :=
   Equivalence.mk (Functor.star _) ((CategoryTheory.Functor.const _).obj PUnit.unit)

33c67ae6

bump to nightly-2023-05-21-03

mathlib commit https://github.com/leanprover-community/mathlib/commit/33c67ae661dd8988516ff7f247b0be3018cdd952

7b1466d5

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Praneeth Kolichala
 
 ! This file was ported from Lean 3 source module algebraic_topology.fundamental_groupoid.punit
-! leanprover-community/mathlib commit 70fd9563a21e7b963887c9360bd29b2393e6225a
+! leanprover-community/mathlib commit 33c67ae661dd8988516ff7f247b0be3018cdd952
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -14,6 +14,9 @@ import Mathbin.AlgebraicTopology.FundamentalGroupoid.Basic
 /-!
 # Fundamental groupoid of punit
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 The fundamental groupoid of punit is naturally isomorphic to `category_theory.discrete punit`
 -/

70fd9563

bump to nightly-2023-05-18-10

mathlib commit https://github.com/leanprover-community/mathlib/commit/c89fe2d59ae06402c3f55f978016d1ada444f57e

ad9cea1f

Diff

@@ -39,6 +39,12 @@ instance {x y : FundamentalGroupoid PUnit} : Subsingleton (x ⟶ y) :=
   · congr <;> apply PUnit.eq_punit
   apply Quotient.subsingleton
 
+/- warning: fundamental_groupoid.punit_equiv_discrete_punit -> FundamentalGroupoid.punitEquivDiscretePunit is a dubious translation:
+lean 3 declaration is
+  CategoryTheory.Equivalence.{u1, u2, u1, u2} (FundamentalGroupoid.{u1} PUnit.{succ u1}) (CategoryTheory.Groupoid.toCategory.{u1, u1} (FundamentalGroupoid.{u1} PUnit.{succ u1}) (FundamentalGroupoid.CategoryTheory.groupoid.{u1} PUnit.{succ u1} PUnit.topologicalSpace.{u1})) (CategoryTheory.Discrete.{u2} PUnit.{succ u2}) (CategoryTheory.discreteCategory.{u2} PUnit.{succ u2})
+but is expected to have type
+  CategoryTheory.Equivalence.{u1, u2, u1, u2} (FundamentalGroupoid.{u1} PUnit.{succ u1}) (CategoryTheory.Discrete.{u2} PUnit.{succ u2}) (CategoryTheory.Groupoid.toCategory.{u1, u1} (FundamentalGroupoid.{u1} PUnit.{succ u1}) (FundamentalGroupoid.instGroupoidFundamentalGroupoid.{u1} PUnit.{succ u1} instTopologicalSpacePUnit.{u1})) (CategoryTheory.discreteCategory.{u2} PUnit.{succ u2})
+Case conversion may be inaccurate. Consider using '#align fundamental_groupoid.punit_equiv_discrete_punit FundamentalGroupoid.punitEquivDiscretePunitₓ'. -/
 /-- Equivalence of groupoids between fundamental groupoid of punit and punit -/
 def punitEquivDiscretePunit : FundamentalGroupoid PUnit.{u + 1} ≌ Discrete PUnit.{v + 1} :=
   Equivalence.mk (Functor.star _) ((CategoryTheory.Functor.const _).obj PUnit.unit)

70fd9563

bump to nightly-2023-02-21-20

mathlib commit https://github.com/leanprover-community/mathlib/commit/bd9851ca476957ea4549eb19b40e7b5ade9428cc

7f7a4bc1

Diff

@@ -43,7 +43,7 @@ instance {x y : FundamentalGroupoid PUnit} : Subsingleton (x ⟶ y) :=
 def punitEquivDiscretePunit : FundamentalGroupoid PUnit.{u + 1} ≌ Discrete PUnit.{v + 1} :=
   Equivalence.mk (Functor.star _) ((CategoryTheory.Functor.const _).obj PUnit.unit)
     (NatIso.ofComponents (fun _ => eqToIso (by decide)) fun _ _ _ => by decide)
-    (Functor.punitExt _ _)
+    (Functor.pUnitExt _ _)
 #align fundamental_groupoid.punit_equiv_discrete_punit FundamentalGroupoid.punitEquivDiscretePunit
 
 end FundamentalGroupoid

70fd9563

bump to nightly-2023-02-21-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/bd9851ca476957ea4549eb19b40e7b5ade9428cc

1107b979

Changes in mathlib4

mathlib3

mathlib4

70fd9563

fix: Fix FundamentalGroupoid being reducible. (#8257)

Instead it is now the opposite -- a structure with a single field.

zulip discussion

Co-authored-by: Adam Topaz <adamtopaz@users.noreply.github.com>

6b362d1e

Diff

@@ -36,7 +36,9 @@ instance {x y : FundamentalGroupoid PUnit} : Subsingleton (x ⟶ y) := by
 
 /-- Equivalence of groupoids between fundamental groupoid of punit and punit -/
 def punitEquivDiscretePUnit : FundamentalGroupoid PUnit.{u + 1} ≌ Discrete PUnit.{v + 1} :=
-  CategoryTheory.Equivalence.mk (Functor.star _) ((CategoryTheory.Functor.const _).obj PUnit.unit)
+  CategoryTheory.Equivalence.mk
+    (Functor.star _)
+    ((CategoryTheory.Functor.const _).obj ⟨PUnit.unit⟩)
     -- Porting note: was `by decide`
     (NatIso.ofComponents fun _ => eqToIso (by simp))
     (Functor.punitExt _ _)

70fd9563

chore: script to replace headers with #align_import statements (#5979)

depends on: #5966

Co-authored-by: Eric Wieser <wieser.eric@gmail.com> Co-authored-by: Scott Morrison <scott.morrison@gmail.com>

89aa3a3b

Diff

@@ -2,15 +2,12 @@
 Copyright (c) 2022 Praneeth Kolichala. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Praneeth Kolichala
-
-! This file was ported from Lean 3 source module algebraic_topology.fundamental_groupoid.punit
-! leanprover-community/mathlib commit 70fd9563a21e7b963887c9360bd29b2393e6225a
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.CategoryTheory.PUnit
 import Mathlib.AlgebraicTopology.FundamentalGroupoid.Basic
 
+#align_import algebraic_topology.fundamental_groupoid.punit from "leanprover-community/mathlib"@"70fd9563a21e7b963887c9360bd29b2393e6225a"
+
 /-!
 # Fundamental groupoid of punit

70fd9563

chore: tidy various files (#4997)

95de1dee

Diff

@@ -42,7 +42,7 @@ def punitEquivDiscretePUnit : FundamentalGroupoid PUnit.{u + 1} ≌ Discrete PUn
   CategoryTheory.Equivalence.mk (Functor.star _) ((CategoryTheory.Functor.const _).obj PUnit.unit)
     -- Porting note: was `by decide`
     (NatIso.ofComponents fun _ => eqToIso (by simp))
-    (Functor.pUnitExt _ _)
+    (Functor.punitExt _ _)
 #align fundamental_groupoid.punit_equiv_discrete_punit FundamentalGroupoid.punitEquivDiscretePUnit
 
 end FundamentalGroupoid

70fd9563

chore: review of automation in category theory (#4793)

Clean up of automation in the category theory library. Leaving out unnecessary proof steps, or fields done by aesop_cat, and making more use of available autoparameters.

Co-authored-by: Scott Morrison <scott.morrison@anu.edu.au>

5b958613

Diff

@@ -38,11 +38,11 @@ instance {x y : FundamentalGroupoid PUnit} : Subsingleton (x ⟶ y) := by
   apply Quotient.instSubsingletonQuotient
 
 /-- Equivalence of groupoids between fundamental groupoid of punit and punit -/
-def punitEquivDiscretePunit : FundamentalGroupoid PUnit.{u + 1} ≌ Discrete PUnit.{v + 1} :=
+def punitEquivDiscretePUnit : FundamentalGroupoid PUnit.{u + 1} ≌ Discrete PUnit.{v + 1} :=
   CategoryTheory.Equivalence.mk (Functor.star _) ((CategoryTheory.Functor.const _).obj PUnit.unit)
     -- Porting note: was `by decide`
-    (NatIso.ofComponents (fun _ => eqToIso (by simp)) fun _ => by simp)
+    (NatIso.ofComponents fun _ => eqToIso (by simp))
     (Functor.pUnitExt _ _)
-#align fundamental_groupoid.punit_equiv_discrete_punit FundamentalGroupoid.punitEquivDiscretePunit
+#align fundamental_groupoid.punit_equiv_discrete_punit FundamentalGroupoid.punitEquivDiscretePUnit
 
 end FundamentalGroupoid

70fd9563

feat: port AlgebraicTopology.FundamentalGroupoid.Punit (#4053)

af2d4939

`algebraic_topology.fundamental_groupoid.punit` ⟷ `Mathlib.AlgebraicTopology.FundamentalGroupoid.PUnit`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 10 + 638

algebraic_topology.fundamental_groupoid.punit ⟷ Mathlib.AlgebraicTopology.FundamentalGroupoid.PUnit

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 10 + 638

`algebraic_topology.fundamental_groupoid.punit` ⟷ `Mathlib.AlgebraicTopology.FundamentalGroupoid.PUnit`